Pivotable wrench jaw having quick slidable adjustment



C. M. SMIDDY PIVOTABLE WRENCH JAW HAVING QUICK SLIDABLE ADJUSTMENT FiledJune 6, 1957 Aug. 12, 1958 United States Patent O l 2,846,911 PIVOTABLEWRENCH JAW HAVING QUICK SLIDABLE ADJUSTMENT Charles M. Smiddy, FortCovington, N. Y. Application June 6, 1957, Serial N o. 664,052 1 Claim.(Cl. 81-100) This invention relates to a tool, and more particularly tola wrench.

The 'object of the invention is to provide a wrench that includes anovel means for locking the movable jaw thereof immobile in its variousadjusted positions.

A still further object of the invention is to provide a wrench thatincludes a stationary jaw and a movable jaw, there being a threadedmeans which permits the movable jaw to be readily adjusted to anydesired position, and wherein means is provided for preventingaccidental movement of the movable jaw.

A further object ofthe invention is to provide a slide wrench which isextremely simple and inexpensive to manufacture.

Other objects and advantages will be apparent during the course of thefollowing description.

In the accompanying drawings forming a part of this application, and inwhich like n-umerals are used to designate like parts throughout thesame.

Figure 1 is a side elevation of the wrench, with parts broken away andin section.

Figure 2 is a bottom view of the wrench shown in Figure 1.

Figure 3 is a reduced scale perspective view showing the handle.

Figure 4 is a reduced scale perspective view showing the movable memberwhich includes the bar and jaw.

Figure 5 is a reduced scale perspective view of the link.

Figure 6 is a reduced scale perspective view of the pin for connectingthe link to the ears of the handle.

Figure 7 is la reduced scale perspective view of the body member whichhas the interrupted threads thereon.

Referring in detail to the drawings, the numeral 10 indicates the frameor handle which includes a main straight portion 11 which has a head 12on one end thereof. The head 12 defines a stationary jaw 13 which isprovided with a plurality of teeth 14 for engagement with the workpieceor article being gripped or handled.

Extending outwardly from the handle 11 and secured thereto is a pair Vofspaced parallel ears 9 which are provided with registering openings 15,Figure 3. The pin 16 is adapted to extend through the openings 15 for apurpose to be later described.

There is further provided a movable bar 17 which is provided with a jaw18 on an end thereof, and the jaw 18 has teeth 19, Figure 1. The bar 17extends through a slot 20 in the head 12.

Mounted on an end of the bar 17 is a support member 21 which has a pairof spaced parallel lugs 22 extending outwardly therefrom, Figure 4. Thelugs 22 are provided with registering apertures, or openings 23. Thenumeral 24 indicates a body member, Figure 7, and the body member 24includes a main cylindrical portion 25 which has trunnions 26 and 27extending outwardly from the ends thereof. A finger piece or knob 28extends outwardly from the trunnion 27 for use in rotating the bodymember 24. The main cylindrical portion l of the body member 24 isprovided with a plurality of threads 29 which are interrupted as at 30so as to define a longitudinally extending slot or space for a purposeto be later described.

The slide Wrench of the present invention further includes a link 31,Figure 5, and the link 31 is provided with an opening 32 in an endthereof for registering with ICC the openings 15 in the ears 9. The link31 is further provided with a plurality of teeth 33 which are adapted toselectively engage the threads 29 or slot 30, and the link 31 extendsinto an elongated groove or slot 34 which is formed in the bar 17. Aspring member 35 may be arranged in engagement with the bar 17 as shownin Figure 1 for example.

From the foregoing it is apparent that there has been provided a slidewrench, and in use an article or member is adapted to be gripped betweenthe jaws 13 and 18 wherein the teeth 14 and 19 will rmly engage thearticle which may be a piece of pipe or any other article or member. Inorder t-o adjust the movable jaw 18, it is only necessary to manuallygrip the knob 28 and turn the knob 28 until the clearance or space 30between the threads 29 coincide with the teeth 33 of the link 31. Then,the bar 17 can be shifted or moved through the slot 20 so that the jaw18 can be moved towards and away from the jaw 13. After the jaw 18 hasbeen moved to the desired location, the knob 28 is again moved so as tomove the body member 24 whereby the threads 29 will move into engagementwith the teeth 33 so as to lock the bar 17 and jaw 18 in its adjustedposition. As long as the threads 29 are in engagement with the teeth 33,movement of the bar 17 through the slot 20 is prevented. However, whenthe teeth 33 register with the space 30, then the member 17 can movewith respect to the link 31.

The parts can be made of any suitable material and in diierent shapes orsize. When the wrench is being used, the 'handle 11 is adapted to begripped in the hand and the article or workpiece being gripped isadapted to be received in the space between the jaws 13 and 18, When theknob 28 is shifted to the proper position, the jaw 18 can be movedeither towards or away from the jaw 13. The pin 16 extends through theregistering openings 15 and 32 for connecting the link 31 to the ears 9.

The above description of the invention is for illustrative puroposesonly and it is understood that modiiications may be made in theconstruction within the scope of the following claim.

I claim:

In va wrench, a handle, a pair of spaced parallel ears extendingoutwardly from said handle and secured thereto, a head arranged on anend of said handle and provided with a slot therein, a bar projectingthrough said slot, a jaw on one end of said bar, said bar being providedwith an elongated groove, a support member on an opposite end of saidbar, said support member including a pair of spaced parallel lugsprovided with registering openings therein; a link having one endconnected to said ears and its other end extending into the groove insaid bar, said link being provided with a plurality of teeth thereon;and a body member including a main cylindrical portion interposedbetween the lugs of said support member, trunnions extending from theends of said main cylindrical portion and projecting into the openingsin said lugs, and a manually operable knob secured to one of saidtrunnions, threads on the main cylindrical portion of said body memberand meshing with said teeth, said threads having longitudinally alignedinterrupted portions movable into registry with the teeth on said linkfor quick slidable adjustment of said bar and its jaw.

References Cited in the iile of this patent UNITED STATES PATENTS340,436 Fairbanks Apr. 20, 1886 1,032,035 Ver Beck July 9, 19121,046,312 Lennox Dec. 3, 1912 1,316,447 Iansa Sept. 16, 1919 1,519,242Day Dec. 16, 1924

